There are
2,008 mi
from Ontario, CA to Waukesha, WI
That's the driving distance. It would take 1 day 11 hours to go from Ontario, California to Waukesha, Wisconsin.
The flight distance (direct flight from Ontario, CA to Waukesha, WI) is 1,695.14 mi.
2,008 mi = 3.22 kms